Issued by Correos Spain on September 24, 2018, this €1.35 commemorative postage stamp, Edifil No. 5253, celebrates the Spanish-engineered Haramain High Speed Railway (La Meca–Medina) in Saudi Arabia. The stamp highlights the Talgo 350 SRO high-speed train, designed to operate at speeds of up to 300 km/h, on the railway connecting Mecca and Medina via Jeddah and King Abdullah Economic City. A distinctive philatelic feature is the use of actual sand particles incorporated through thermographic printing, creating a tactile representation of the desert environment. The issue celebrates Spanish engineering, international infrastructure cooperation, and high-speed rail technology.